Cybercrime group SiegedSec claims to have hacked and stolen hundreds of thousands of records containing personal and financial data from the Idaho National Laboratory (INL), a top nuclear research centre in the US. The recovered data includes social security numbers, banking information, and addresses, although SiegedSec has not said why it targeted INL. The breach could potentially enable foreign intelligence agencies to infiltrate the lab and represents major national security concerns.

Microsoft Defender Vulnerability Allows Attackers to Elevate Privileges
A newly revealed flaw in Microsoft Defender for Endpoint (CVE-2025-26684) allows local attackers to escalate privileges to SYSTEM level, gaining complete control of affected systems.